Composition of matter.



BYRON B. GOLDSMITH, OF NEW YORK, N. Y.

COMPOSITION OF MATTER.

Specification of Letters Patent.

Patented J an. 15, 1907.

Application filed January 24, 1903. swarm. 140,420.

To all whom it may concern.-

Be it known that I, BYRON B. GOLDSMITH,

new and useful Improvement in Compositions of Matter, of which the following is a specification.

My invention relates to a new composition of matter which may be used in a solid form as a mass or in solutlcn for coating absorbent art1cles-such as leather, cloth, paper, or

Woodalthough it may also be used for coatin non-absorbent articles.

y means'of my invention I have produced a composition which when used as a coating has a fine finish, is very durable, and, being flexible, will withstand the severest tests without cracking. Besides, the composition has any desired de ree of tenacity.

This new composition l produce by means of a mixture of vulcanized oil and pyroxylin or nitrocellulose. speaking, are known on the market as rubber substitutes and possess considerable flexibility and resiliency. They have not, however, much tenacity. I have found that by mixing vulcanized oils with pyroxylin the resulting compounds are not only resilient and flexible, but are extremely tenacious, this tenacity varying somewhat with the amount of pyroxylin which has been added to the vulcanized oil or rubber substitute.

I have found that vulcanized corn-oil is well adapted for an ingredient of my new composition. '1 am not, however, confined to such vulcanized corn-oil, since other vulcanized oils will answer.

The general process of making my new compound is to prepare a solution of the vulcanized oil and of the pyroxylin each with a solvent and to mix the two solutions together. The simplest plan is to use the same solvent for both ingredients just specified; but different solvents can be used for each. For instance, I may take vulcanized corn-oil, dissolve it in amyl acetate, and mix it with pyrox lin dissolved in amyl acetate, or, on the ot er hand, I may dissolve the vulcanized corn-oil in turpentine and mix the resulting solution with pyroxylin dissolved in amyl acetate, or I may, if I choose, take vulcanized corn-oil dissolved in amyl acetate and mix it with pyroxylin dissolved in a mixture of amyl acetate, fusel-oil, and benzene. The addition of small proportions of turpen- Vulcanized oils, generally usual way.

tine to any of these solutions has the beneficial eflect of clearing them and of making the a citizen of the United States, residing in the i city and State of New York, have invented a ultimate coating more brilliant.

" My new compound which is thus produced varies with the nature of the vulcanized oil which has been used to produce it. Thus if, as I prefer, I prepare a solution of vulcanized non or semi drying oil and mix it with a solution of pyroxylin a composition for coatings will have been produced which has considerable flexibility and uite sufficient gloss for ordinary pusposes. f, on the other hand, I use a vulcanized drying-oil, it will 'be found that when it is dissolved and mixed with a solution of pyroxylin a composition for coatings will have been produced which, while somewhat wanting in flexibility, has an even greater gloss. I may therefore produce acomposition having the characteristics of great gloss and great flexibility by combining a solution of vulcanized drying-oil and of vulcanized non-drying oil with a solution of pyroxylin.

I can, naturally, color the compound in any It is also useful for some purposes to add to the compound above described a non-drying oil which has not been vulcanized for the purpose of imparting additional flexibility to the compound, or to add to it a drying-oil which has not been vulcanized for the purpose of imparting an additional gloss, or to add to it both a nonvulcanized drying-oil and a non-vulcanized non-drying oil for the purpose of imparting to the composition both a ditional gloss and additional flexibility. It will thus be seen that in this aspect my invention consists of a compound of a vulcanized oil and pyroxylin, which vulcanized oil may be vulcanized drying-oil, vulcanized non-drying oil, or both, and to which composition may be added ordinary non-vulcanized drying-oil, or ordinary non-vulcanized non-drying oil, or both, to give the requisiteproperties of tenacity, flexibility, and gloss in the degrees desired.

As the method of vulcanizing' oils is well known to those skilled in the art and as the processes for vulcanizing oils are very numerous, I need not recite them here. I may say, however, that vulcanized oils go into solution very slowly, and for this reason they have heretofore been looked upon as rather insoluble bodies. I have found, however, that vulcanized oils will go into solution if the dissolving action be sufliciently prolonged and that some vulcanized oils which seem almost insoluble can be made soluble by first melting them under the action of a gentle heat.

By the term vulcanized oils I mean to .include only such combinations of oil and sulfur as are solid, and not viscid fluids or balsams, which are made by thickening up oils by heating them with sulfur, nor the.

thickened oils made by treating oils with small amounts of chlorid oi" sulfur, such as from two toten per cent. Both of these above-mentionedproducts are not solid substances, but are merely thickened oils. Such com ounds mixed with pyroxi-lin are very simi ar to the mixtures of pyroxilin and; nondrying oils or blown oils. 'They are very difi'erent from the mixture of: pyroxylin and the solid vulcanize oils which I use.

substances. have been? mixed with. pyroxyljn,

' and that among them oils blown oils, and

sulfu-reted oils have been 50- mixed.

compounds, however, do. not give so, great a mixtures to produce the different gloss or flexibility as is the case with the compound? of my invention, nor do. they allow of such a wide range otyaltiation of properties described in the wished-tor degree:

I may add that many other substances may manifestly be added to. the compound which I have above described for the pur --pose ofadding to the resulting composition any other quality or property.

When the composition is used as a mass, its properties may be varied by the addition of other substances, just as. when it is used for a coating. This. allows of the use oi this new composition of matter alone or mixed with other substances for a great variety of purposes.

I: may further state thatv many differ nt Such ' yuleanimd:

mtryroxy n n-drym seiaoc What 11 clans is 4 stantially as described.

4. A composition of matter comprising pyroxylin and a rying-oil which as been vulcanized to, the extent necessary to. convert it into. a caoutchouc-likefmass, substantially as described.

5, A composition of matter comprising vulcanized o1l pyroxyl-inand, non-drying oil, substantially asv described-.

6. A composition of matter comprisin vulcanized 0-111, ,yroxy in and rhymeil,

substantially as eskzribed.)

A, comp sijtion of matter comprising vulcanized 01: pyroxylin non-dry' 011 an dryinsgwitsubstantially asdese ibe 8. A composi i n of matter Compr s ng ying-oil, vulcanized non dryoil, substantially as describecl Entesti aomy whe f I. ave s gnedl my, name to. this specification in the presence of two sulosc-vribing witnesses.

BXRQ B- GQLDSMITH Witnesses; 1

Q. FINN, R. Mfume. 

